JEE Main Chemistry question
If the salts M₂X, QY₂ and PZ₃ have the same solubilities, Ksp values are related as:
Answer: (D)
Solution
Ksp(M₂X)=4s³=Ksp(QY₂); Ksp(PZ₃)=27s⁴. For a small s (typical of sparingly soluble salts), 27s⁴<4s³.
If the salts M₂X, QY₂ and PZ₃ have the same solubilities, Ksp values are related as:
Ksp(M₂X)=4s³=Ksp(QY₂); Ksp(PZ₃)=27s⁴. For a small s (typical of sparingly soluble salts), 27s⁴<4s³.